@thi.ng/transducers/peek.d.ts

Collection of ~170 lightweight, composable transducers, reducers, generators, iterators for functional data transformations

import type { Transducer } from "./api.js";
/**
 * Transducer version of
 * [`peek`](https://docs.thi.ng/umbrella/arrays/functions/peek.html), i.e.
 * extracts the last item of an array.
 *
 * @example
 * ```ts tangle:../export/peek.ts
 * import { peek } from "@thi.ng/transducers";
 *
 * console.log(
 *   [...peek([ [1, 2, 3], [4, 5] ])]
 * );
 * // [ 3, 5 ]
 * ```
 */
export declare function peek<T>(): Transducer<T[], T>;
export declare function peek<T>(src: Iterable<T[]>): IterableIterator<T>;
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